Today people take advantage of vary marketing methods to promote their products. LED video screen is one of those marketing methods. But do you really know how to determine a good screen? Let’s talk about it. The LED, where the LED screen get its name from, is definitely the key of a good screen. There are many factors to determine a good LED video screen such as - Checking the brightness of the LED, Check the uniformity of color of the LED, Checking the chips on the LED. Usually, the bigger chip the better stability, brightness and heat dissipation, Checking the glue, fluorescent powder,Checking the encapsulation tech and good encapsulation machine will be the matter of the encapsulation tech High quality LED will not be out of shape when it is pressed by hand and Checking the lead frame. Pure copper has very nice capability.